gcc/ChangeLog

   1 2006-01-03  Zdenek Dvorak <dvorakz@suse.cz>
   2
   3         * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
   4         * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
   5         to loop_version.
   6         * cfgloopmanip.c (scale_loop_frequencies): Export.
   7         (loopify): Scale the frequencies by prescribed coefficients.
   8         (set_zero_probability): New function.
   9         (duplicate_loop_to_header_edge): Improve updating of frequencies.
  10         (lv_adjust_loop_entry_edge, loop_version): Set probabilities
  11         and frequencies according to arguments.
  12         * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
  13         correctly.
  14         * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
  15         * modulo-sched.c (sms_schedule): Set probabilities for entering
  16         versioned loop correctly.
  17         * tree-vect-transform.c (vect_transform_loop): Ditto.
  18         * cfgloop.h (loopify, loop_version): Declaration changed.
  19         (scale_loop_frequencies): Declared.
  20
  21 2007-01-02  Jan Hubicka  <jh@suse.cz>
  22
  23         * cgraph.c: Include tree-flow.h
  24         (cgraph_add_new-function): Handle IPA_SSA mode; execute
  25         early_local_passes.
  26         * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
  27         * tree-pass.h (pass_all_early_optimizations): Declare.
  28         * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
  29         early_local_passes.
  30         (cgraph_analyze_function): Do early_local_passes.
  31         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
  32         Do not add referenced vars.
  33         * tree-optimize.c (gate_all_optimizations): Do not execute when not in
  34         SSA form.
  35         (gate_all_early_local_passes): New gate.
  36         (pass_early_local_passes): Use new gate.
  37         (execute_early_local_optimizations): New functions.
  38         (gate_all_early_optimizations): New gate.
  39         (pass_all_early_optimizations): New pass.
  40         (execute_free_datastructures): Free SSA only when initialized.
  41         (gate_init_datastructures): Init only when optimizing.
  42         (tree_lowering_passes): Do early local passes when called late.
  43         * tree-profile.c (do_tree_profiling): Don't profile functions added
  44         late.
  45         (do_early_tree_profiling, pass_early_tree_profile): Kill.
  46         * tree-cfg.c (update_modified_stmts): Do not update when operands are
  47         not active.
  48         * passes.c (init_optimizations_passes): Reorder so we go into SSA
  49         during early_local_passes.
  50         * Makefile.in (cgraph.o): Add dependency on tree-flow.h.
  51
  52
  53 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
  54
  55         * Makefile.in: Update copyright year.
  56
  57 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
  58
  59         * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
  60         in $(lang_checks) and check-consistency targets.
  61
  62 2007-01-02  Jan Hubicka  <jh@suse.cz>
  63
  64         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
  65         Do not add referenced vars.
  66         * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
  67         are not active.
  68         * passes.c (init_optimization_passes): Put mudflap_2 after
  69         free_datastructures.
  70
  71 2007-01-02  Jan Hubicka  <jh@suse.cz>
  72
  73         * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
  74         Set NOTHROW flag on call statements proved to be nothrow.
  75         Update statement of local calls so new pure/const functions are
  76         updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
  77         goto receivers.
  78         (tree_rest_of_compilation): Register hooks and initialize bitmap
  79         early. Do not set after_inlining flag.
  80
  81 2007-01-02  Steve Ellcey  <sje@cup.hp.com>
  82
  83         * sbitmap.c (HOST_BITS_PER_LONG_LONG):  Change to
  84         HOST_BITS_PER_LONGLONG
  85
  86 2007-01-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>
  87
  88         PR c/19977
  89         * c-typeck.c (store_init_value): Don't emit pedantic overflow
  90         warning for non-static initializers.
  91
  92 2007-01-02  Steven Bosscher  <steven@gcc.gnu.org>
  93
  94         * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
  95         m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
  96         rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
  97         Always use set_unique_reg_note to add REG_EQUAL notes.
  98
  99 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
 100
 101         Revert:
 102         2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
 103
 104         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
 105         * cfgbuild.c (find_basic_blocks): Likewise.
 106         * cfgrtl.c (rtl_create_basic_block): Likewise.
 107         * function.c (temp_slots_at_level): Likewise.
 108         * reg-stack.c (stack_regs_mentioned): Likewise.
 109         * regclass.c (allocate_reg_info): Likewise.
 110         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
 111         set_bb_for_stmt, move_block_to_fn): Likewise.
 112         * tree-complex.c (tree_lower_complex): Likewise.
 113         * vec.h (VEC_safe_grow_cleared): New.
 114
 115 2007-01-02  Ian Lance Taylor  <iant@google.com>
 116
 117         * c-common.c (c_common_truthvalue_conversion): When warning about
 118         using an assignment as a truth value, set TREE_NO_WARNING.
 119
 120 2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 121
 122         PR middle-end/7651
 123         * c.opt (Wold-style-declaration): New.
 124         * doc/invoke.texi (C-only Warning Options): New.
 125         (Wold-style-declaration): Document it.
 126         (Wextra): Enabled by -Wextra.
 127         * c-opts.c (c_common_post_options): Enabled by -Wextra.
 128         * c-decl.c (declspecs_add_scspec): Replace -Wextra with
 129         -Wold-style-declaration.
 130
 131 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
 132
 133         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
 134         * cfgbuild.c (find_basic_blocks): Likewise.
 135         * cfgrtl.c (rtl_create_basic_block): Likewise.
 136         * function.c (temp_slots_at_level): Likewise.
 137         * reg-stack.c (stack_regs_mentioned): Likewise.
 138         * regclass.c (allocate_reg_info): Likewise.
 139         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
 140         set_bb_for_stmt, move_block_to_fn): Likewise.
 141         * tree-complex.c (tree_lower_complex): Likewise.
 142         * vec.h (VEC_safe_grow_cleared): New.
 143
 144 2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>
 145
 146         * c-common.c(c_common_nodes_and_builtins): Since variants of
 147         void_type_node get built before it is given a name, we need to
 148         give those variants the name, too.
 149         (complete_array_type): We need to work with the canonical main
 150         type of the array, from which we will build the qualified version.
 151         * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
 152         * print-tree.c (print_node): Display canonical type information
 153         for each type.
 154         * stor-layout.c (layout_type): When we don't know the
 155         alignment of a type for which we're building an array, we end up
 156         guessing wrong, so make the type require structural equality.
 157         * tree.c (make_node_stat): When we build a new type, it is its
 158         own canonical type.
 159         (build_type_attribute_qual_variant): When building an attribute
 160         variant, its canonical type is the non-attribute variant. However,
 161         if the attributes are target-dependent and they differ, we need to
 162         use structural equality checks for this type.
 163         (build_qualified_type): A qualified type is not equivalent to its
 164         unqualified variant; set the canonical type appropriately.
 165         (build_distinct_type_copy): When building a distinct type from
 166         another type, the new type is its own canonical type.
 167         (build_variant_type_copy): When building a new type variant, we
 168         assume that it is equivalent to the original type.
 169         (build_pointer_type_for_mode): When building a pointer type, also
 170         build a canonical type pointer.
 171         (build_reference_type_for_mode): When building a reference type,
 172         also build a canonical type reference.
 173         (build_index_type): When we can't hash an index type (e.g.,
 174         because its maximum value is negative), the index type requires
 175         structural equality tests.
 176         (build_array_type): Build the canonical form of an array type.
 177         (build_function_type): Function types require structural equality,
 178         because they contain default arguments, attributes, etc.
 179         (build_method_type_directly): Ditto for method types.
 180         (build_offset_type): Build the canonical offset type.
 181         (build_complex_type): Build the canonical vector type.
 182         (make_vector_type): Build the canonical vector type.
 183         * tree.h (TYPE_CANONICAL): New.
 184         (TYPE_STRUCTURAL_EQUALITY_P): New.
 185         (SET_TYPE_STRUCTURAL_EQUALITY): New.
 186         (struct tree_type): Added "canonical" field.
 187         * params.h (VERIFY_CANONICAL_TYPES): New.
 188         * doc/c-tree.texi (TYPE_CANONICAL): Document.
 189         (TYPE_STRUCTURAL_EQUALITY_P): Document.
 190         (SET_TYPE_STRUCTURAL_EQUALITY): Document.
 191         * doc/invoke.texi (verify-canonical-types): Document --param
 192         parameter for verifying canonical types.
 193
 194 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
 195
 196         * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
 197         powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
 198         powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
 199         powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
 200         tm_file.
 201         * config/rs6000/e500.h: New.
 202         * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
 203         TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
 204         Remove.
 205         * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
 206         TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
 207         TARGET_E500_DOUBLE): Remove.
 208         * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
 209         TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
 210         * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
 211         * config/rs6000/rs6000.c (rs6000_override_options): Use
 212         CHECK_E500_OPTIONS.
 213
 214 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
 215
 216         * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
 217         TARGET_E500_DOUBLE), not TARGET_E500, for %y.
 218         (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
 219         rs6000_emit_cmove): Don't check TARGET_E500.
 220         * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
 221         sordered): Don't check TARGET_E500.
 222
 223 2007-01-01  Eric Christopher  <echristo@apple.com>
 224
 225         * config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
 226         HARD_REGISTER_NUM_P.
 227
 228 2007-01-01  Roger Sayle  <roger@eyesopen.com>
 229
 230         * fold-const.c (fold_binary) <EQ_EXPR>: Fold "(X^C1) eq/ne C2" into
 231         "X eq/ne (C1^C2)".  Fold "(X^Z) eq/ne (Y^Z)" as "X eq/ne Y" when Z
 232         has no side-effects.  Fold "(X^C1) eq/ne (Y^C2)" as "(X^(C1^C2))
 233         eq/ne Y".
 234
 235 2007-01-01  Mike Stump  <mrs@apple.com>
 236
 237         * configure.ac: Remove support for building with Apple's gcc-3.1.
 238
 239 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
 240
 241         PR middle-end/30311
 242         * caller-save.c (add_stored_regs): Only handle SUBREGs if inner
 243         REG is a hard register.  Do not modify REG before calling
 244         subreg_nregs.
 245         * rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
 246         multiple of the size of YMODE for certain lowpart cases.
 247
 248 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
 249
 250         PR middle-end/30253
 251         * gimplify (voidify_wrapper_expr): Update for
 252         GIMPLE_MODIFY_STMT.
 253
 254 2007-01-01  Andreas Schwab  <schwab@suse.de>
 255
 256         PR target/29166
 257         * config/ia64/ia64.c (ia64_compute_frame_size): Account space for
 258         save of BR0 in extra_spill_size instead of spill_size.
 259         (ia64_expand_prologue): Save BR0 outside of the gr/br/fr spill
 260         area.
 261         (ia64_expand_epilogue): Restore BR0 from its new location.
 262
 263 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
 264
 265         * gimplify.c (gimplify_init_constructor <case VECTOR_TYPE>):
 266         Use a temporary variable if the left hand side is not a gimple
 267         register.
 268
 269 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
 270
 271         * gimplify.c (gimplify_return_expr): Make the temporary variable
 272         for the return expression, a gimple register variable.
 273
 274 2007-01-01  Jan Hubicka  <jh@suse.cz>
 275
 276         * emit-rtl.c (emit_copy_of_insn_after): Do not call copy_insn_1 for
 277         INSN_LIST.
 278
 279 2007-01-01  Mike Stump  <mrs@apple.com>
 280
 281         * configure.ac (HAVE_GAS_LITERAL16): Add autoconf check for
 282         .literal16.
 283         * config/darwin.c (machopic_select_rtx_section): Use
 284         HAVE_GAS_LITERAL16.
 285         (darwin_mergeable_constant_section): Likewise.
 286         * configure: Regenerate.
 287         * config.in: Regenerate.
 288
 289 2007-01-01  Jan Hubicka  <jh@suse.cz>
 290             Andrew Pinski  <pinskia@gmail.com>
 291
 292         * cgraphunit.c (cgraph_optimize): Call cgraph_add_new_functions
 293         before starting IPA passes.